Ceiling fan



FIG. 1 is a perspective view of a ceiling fan showing our new design;

FIG. 2 is an additional perspective view thereof;

FIG. 3 is a side elevation view thereof;

FIG. 4 is an alternative side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines in the drawings depict parts of the ceiling fan that form no part of the claimed design. 

CLAIM Applicant claims the ornamental design for a ceiling fan, as shown and described. 